Ring Type Joint Flanges
As a leading supplier and manufacturer in China, GNEE Steel provides cost-effective nickel-based alloy products.
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The Ring Type Joint Flanges (RTJ) are primarily applicable in high pressure or high-temperature settings (above 427°C). These flanges have grooves cut into their faces, which steel ring gaskets. The bolts, if tightened, get compressed with the gasket between these flanges seal into the slots or Coining the gasket. This makes intimate contact inside the grooves, creating a metal-to-metal seal. RTJ flange is designed with raised face with a ring groove machined into it (the raised face does not serve any part of the sealing). Although these RTJ flanges get sealed with ring gaskets, the raised faces of the connected and tightened flanges may contact each other. The compressed gasket will not bear extra load beyond the bolt tension and vibration. Thus, movement cannot further crush the gasket and lessen the connecting stress.
Ring Type Joint Flanges Specifications
| Type | RTJ / Ring Type Joint Flange |
|---|---|
| Size | ½" (15 NB) to 48″ (1200NB) |
| Class | 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc. |
| Dimensions | ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings |
| Standard | ANSI B16.5, ANSI B16.47, ANSI B16.36, ANSI B16.48, BS 4504, EN1092, UNI 2277/2278, DIN, JIS, SABS1123, GOST-12820 |
| BS | BS4504 , BS4504, BS1560, BS10 |
| DIN | DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636,DIN2637, DIN2638, DIN2673 |
| Coating / Surface Treatment | Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized |
| In Form | SORF, WNRF, BLRF, SWRF, LAP Joint, Threaded, Reducing, Spectacle, etc |
| Flange Face Type | Flat Face (FF), Raise Face (RF), Ring Joint (RJT) |
| Connection Type | Ring Type Joint, Lap-Joint Face, Raised Face, Flat Face, Large Male-Female, Small Male-Female, Large Tongue & Groove, Small Tongue & Groove |
| Usage | Oil Field, Offshore, Water System, Shipbuilding, Natural Gas, Electric Power, Pipe Projects etc. |
| Packing | No Fumigate or Fumigate Plywood/Wood Pallet or Case |
Ring Type Joint Flange Made of
RTJ flanges can be made of a variety of materials, depending on the specific requirements of the system and application. Common materials include carbon steel, stainless steel and alloy steel. The choice of material depends on factors such as the pressure and temperature of the system, the type of fluid or gas being conveyed, and the environmental conditions of the application.
Ring Type Joint Flange Advantages
RTJ flanges provide a reliable, secure seal that can withstand high pressures and temperatures, making them ideal for demanding applications. They are also easy to install and remove, making maintenance and repair work more efficient.
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